LocalFree

Yesno MCP server

mrfentmen/yesno-mcp

Random yes or no answers from the Yes No API. No key required.

Source code

Install Yesno in Claude Code

Claude Code
claude mcp add yesno -- npx -y yesno-mcp
mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)
{
  "mcpServers": {
    "yesno": {
      "command": "npx",
      "args": [
        "-y",
        "yesno-mcp"
      ]
    }
  }
}

Frequently asked questions

What does the Yesno MCP server do?

Random yes or no answers from the Yes No API. No key required.

Is the Yesno MCP server free?

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

Does Yesno run locally or remotely?

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

How do I add Yesno to Claude Code?

Run: claude mcp add yesno -- npx -y yesno-mcp

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